104594-83-4

Upstream product

• 104-01-8 4-Methoxyphenylacetic acid 
• 63468-90-6 phenylglyoxylic acid potassium salt 
• 126158-88-1 2-(p-Methoxyphenyl)-3-phenylmaleimide 
• 132589-73-2 (4-Methoxy-phenyl)-acetic acid 2-oxo-2-phenyl-ethyl ester 
• 126158-61-0 1-Phenyl-3-(α-cyano-p-methoxybenzylidene)triazene 
• 126158-47-2 5-Amino-4-p-anisyl-1-phenyl-1,2,3-triazole 
• 126158-80-3 5-Amino-3-(p-methoxyphenyl)-4-phenyl-2-(phenylimino)-2H-pyrrole 
• 126158-55-2 5-Azido-4-(4-methoxy-phenyl)-1-phenyl-1H-[1,2,3]triazole 
• 126158-72-3 (E)-3-Cyano-2-(4-methoxy-phenyl)-3,N-diphenyl-acrylamidine 
• 104-47-2 p-methoxybenzylnitrile 
• 100-06-1 1-(4-methoxyphenyl)ethanone 
• 536-74-3 phenylacetylene 
• 7099-91-4 p-methoxybenzoylformic acid 

Downstream Products

• 73442-35-0 2,5-Bis(4-methoxyphenyl)-4-phenyl-4-cyclopenten-1,3-dion 

Relevant academic research and scientific papers

Facile Synthesis of γ-Butenolides and Maleic Anhydrides via Annulation of α-Keto Acids and Triazenyl Alkynes

A facile synthesis of γ-butenolides and maleic anhydrides via annulation of α-keto acids and triazenyl alkynes is described. In this process, α-keto acids and triazenyl alkynes could undergo a self-catalyzed annulation at room temperature to deliver γ-butenolides efficiently, while the further addition of BF3-Et2O furnished maleic anhydrides. Overall, these processes have mild reaction conditions, broad scope, and high efficiency.

Synthesis of 3,4-diarylsubstituted maleic anhydride/maleimide via unusual oxidative cyclization of phenacyl ester/amide

A simple and general method has been developed for the synthesis of 3,4-diarylsubstituted maleic anhydride and maleimide through tandem cyclization and oxidation reaction of phenacyl ester or amide. A wide variety of phenacyl esters or amides was treated with DBU under oxygen atmosphere to give the expected compounds in good to excellent yield. Mechanism of the reaction and application of the methodology have been discussed.

The Chemistry of 3-(α-Cyanobenzylidene)-1-phenyltriazenes and Their Conversion to Diarylmaleimides and Phenanthrene-9,10-dicarboximides

3-(α-Cyanobenzylidene)-1-phenyltriazine (3a), the product of thermolysis of 5-azido-1,4-diphenyl-1,2,3-triazole (2), is attacked by nucleophilic reagents at the azomethine carbon.Alcohols and phenol give rise to acetals of the N-phenylamidine of phenylgly